The LM3200 is a DC-DC converter opTImized for poweringRF power amplifiers (PAs) from a single Lithium-Ion cell. Itsteps down an input voltage of 2.7V to 5.5V to a variableoutput voltage of 0.8V to 3.6V. The output voltage is setusing an analog input ( VCON) for opTImizing efficiency of theRF PA at various power levels.